A double high-efficiency carbon dioxide air-conditioning heat pump system

A technology of heat pump system and carbon dioxide, applied in the direction of air conditioning system, space heating and ventilation, heating method, etc., can solve the problem of low efficiency of air conditioning system, achieve independent control of temperature and humidity of air conditioning and energy saving, simplify system structure, cycle performance The effect of increasing the coefficient

Active Publication Date: 2022-03-15
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a dual high-efficiency carbon dioxide air-conditioning system, thereby solving the technical problem of low efficiency of the existing air-conditioning system

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  • A double high-efficiency carbon dioxide air-conditioning heat pump system

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0024] An embodiment of the present invention provides a double high-efficiency carbon dioxide air-conditioning heat pump system, such as figure 1 shown, including:

[0025] Compressor 1, four-way reversing valve 2, outdoor heat exchanger 3, regenerator 4, ejector 5, first indoor heat exchanger 6, second indoor heat exchanger 7, gas-liquid separator 8, first Throttle mechanism 11, second th...

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Abstract

The invention discloses a double high-efficiency carbon dioxide air-conditioning heat pump system, which adopts natural and environmentally friendly carbon dioxide as a refrigerant, and has two working modes of cooling and heating. Refrigerant pressure energy, injecting part of the refrigerant liquid in the gas-liquid separator to achieve low-temperature refrigeration, achieving independent dehumidification and recovering part of the compression work to reduce compressor power consumption and improve refrigeration efficiency; under heating mode, the high-temperature exhaust of the compressor is sequential Enter the second indoor heat exchanger and the first indoor heat exchanger to realize the countercurrent heat exchange with the indoor air, the heat exchange is sufficient, the heating capacity of the system is improved, and the purpose of efficient heating is achieved; thus the whole system can realize dual cooling and heating. efficient.

Description

technical field [0001] The invention belongs to the field of air conditioning, and more specifically relates to a double high-efficiency carbon dioxide air conditioning heat pump system. Background technique [0002] Refrigeration and air conditioning systems are widely used in various refrigeration and air conditioning occasions. Traditional air-conditioning system refrigerants use freon or hydrocarbon refrigerants. The former is restricted by the "Montreal" and the "Paris Agreement" on climate change due to the ozone layer or global warming effects. The system has the advantages of good compatibility and high energy efficiency ratio, but it has the disadvantage of flammability. At the same time, compared with the refrigeration and air conditioning system with carbon dioxide as the refrigerant, the heating capacity of the traditional air conditioning system is low. As an environmentally friendly and safe refrigerant, carbon dioxide is non-flammable, has no ODP effect, extr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F5/00F24F11/46F25B9/00F25B31/00F25B41/20F25B41/30F25B41/34F25B41/40
CPCF24F5/001F24F11/46F25B9/008F25B31/00
Inventor 何国庚樊明敬蔡德华
Owner HUAZHONG UNIV OF SCI & TECH
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